121134403203 has 16 divisors (see below), whose sum is σ = 178318336896. Its totient is φ = 72530272640.

The previous prime is 121134403151. The next prime is 121134403207. The reversal of 121134403203 is 302304431121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121134403203 - 2²⁰ = 121133354627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121134403207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22110150 + ... + 22115627.

It is an arithmetic number, because the mean of its divisors is an integer number (11144896056).

Almost surely, 2^121134403203 is an apocalyptic number.

121134403203 is a deficient number, since it is larger than the sum of its proper divisors (57183933693).

121134403203 is a wasteful number, since it uses less digits than its factorization.

121134403203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44225874.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121134403203 its reverse (302304431121), we get a palindrome (423438834324).

The spelling of 121134403203 in words is "one hundred twenty-one billion, one hundred thirty-four million, four hundred three thousand, two hundred three".